Pak J Biol Sci. 2021 Jan;24(12):1278-1296. doi: 10.3923/pjbs.2021.1278.1296.
<b>Background and Objective:</b> Salt stress is considering the biggest environmental obstacle to crop productivity, especially sorghum. So, it was necessary to develop new sorghum lines tolerant to salt stress and high yielding to participate in bridging the large gap in the Egyptian bread industry and also as an important feed for animals. This is the biggest goalie this investigation. <b>Materials and Methods:</b> Some promising sorghum genotypes were evaluated under the control experiment and two salinity stress locations to test their stability and its salinity stress tolerance during two years. Some agro-morphological and physiological traits were the most important parameters tested under all conditions besides, 11 SCoT primers for comparing among the seven sorghum genotypes and Identification of molecular genetic markers responsible for salt stress tolerance. <b>Results:</b> The final results revealed that the five promising sorghum lines were recorded highly rank of salinity stress tolerance in all studied traits and a higher level of genetic stability during the two years. <b>Conclusion:</b> Results of agro-physiological traits, salinity tolerance indices and SCoT primers succeed in determining salt stress tolerance mechanisms in sorghum and which an important taxonomic tool is for plant breeder that helps him in sorting the tolerant genotypes from the sensitive ones.
盐胁迫被认为是作物生产力的最大环境障碍,尤其是高粱。因此,有必要开发新的耐盐和高产高粱品系,以参与弥合埃及面包行业的巨大差距,并作为动物的重要饲料。这是本研究的最大目标。材料与方法:在控制实验和两个盐胁迫地点评估了一些有前途的高粱基因型,以测试它们在两年期间的稳定性及其对盐胁迫的耐受性。一些农艺形态学和生理学特性是在所有条件下测试的最重要参数,此外,还使用了 11 个 SCoT 引物来比较 7 个高粱基因型,并鉴定与耐盐性相关的分子遗传标记。结果:最终结果表明,在所有研究的性状中,五个有前途的高粱品系表现出高度的耐盐性,在两年期间具有更高的遗传稳定性。结论:农艺生理特性、耐盐性指数和 SCoT 引物的结果成功地确定了高粱耐盐性的机制,这是植物育种者的一个重要分类工具,有助于他从敏感品系中筛选出耐盐品系。